Finding the Fourth Proportional to 279,005.97, 385,058.30 and 158,134.26
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Solution
The fourth proportional to 279,005.97, 385,058.30 and 158,134.26 is: 218,242.32
Step by Step Solution
- Step 1: Write the proportion equation
279,005.97 : 385,058.30 = 158,134.26 : x - Step 2: Convert to fraction form
279,005.97/385,058.30 = 158,134.26/x - Step 3: Cross multiply
279,005.97x = 385,058.30 × 158,134.26 - Step 4: Simplify right side
279,005.97x = 60,890,909,327.36 - Step 5: Solve for x
x = 60,890,909,327.36/279,005.97 - Step 6: Final answer
x = 218,242.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.